Controlling-valve.



E. R. MORRISON, J. BIDDBLL & R. G. MORRISON.

oomomma nun.

APYLIOA'I'IOI FILED DOT. 7, 1908.

Patented Mar. 23, 1909.

2 SHEETS-SHEET 1.

Inventors.

R Mm'rllwn asap/7 Riddoll Rtc/mdfiMnrLsm Zl/ilnesse B. R. MORRISON, J. RIDDBLL dz R. G. MORRISON. CONTROLLING VALVE. nruonron run-n 061*.7, 190a.

915,991. Pa tented Mar. 23, 1909.

2 SHEETS-SHEET 2.

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Specification of Letters Patent. 4 Patented March 23,1909.

Application and mm 7, nos. Serial no. items.

valve structure for regulatin the amount of air and gas supplied to a hot-b ast oven, stove, or furnace, or any other place where air and gas are burned together.

1 5 The ob'ect of the invention is to construct a control ing device of simple arrangement and construction whereb econom is secured in the cost of the evice an also to provide a perfect regulation of the amount of either gas or air supplied to the combustion chamber. p

The device provides means for regulating the amount of air without affecting. the supply of gas, for. regulating the amount of without affecting the supply of air, and

regulating both together, so that in an size ilame desired, perfect combustion wil take place. The device is also convenient of operation and easily manipulated.

In the accompanying drawings, Figure 1 is a plan view of t e lower part of the structure; Fig. 2 is a vertical section of the complete apparatus; Fig. 3 is a horizontal section of a modification, on the line 3-3 of Fi 4; Fig. 4 is a vertical section of the same; g. 5 1s a front elevation of the'same.

Referring specifically to-Figs. 1 and 2, 1 indicates a gas su ply pipe provided at the top" with a flaring read 2 which rests upon the 0 top of the pipe and forms a swivel joint 1 so that the head can be turned if desired, the parts being circular at the-joint. A slide valve 3 rests upon the head 2, said valve comprising a plate having an upwardly rojecting neck 3 around an opening, wiich opening. is of less area than the opening in the head, which is enlarged or flared, as stated. The slide 3 works back and forth between guides-4 on'the head. The neck 3" is fitted sowith a pipe 10 having a curved neck 11 and tcrminatin in a nozzle 12 through which the gas is disc urged. The nozzle 12 projects into an outer annular shell or inlet 5 to the combustion chamber. The end of the nozzle 12 is of less diameter than the shell, forming This invention is a controlling device or nozzle 12 which cooperates with the'shel 5" 14 at the head of the inlet a space 5f through which air may. enter around the gas nozzle. The valve 3 is or ma Y be operated bya. hand wheel 6 on a shaft 6 aving a pinion 6 which meshes with a rack 7'on the top of the to move the plate, so slide valve back and fort 8 is a valve in r the neck 3, for regulating-the amount of gas without moving any other art of the device.

9 is a sliding door carried y rollers upon a track 10,and which can be closed over the. inlet 5 when the'gas nozzle is withdrawn thereby closing the inlet to the combustion chamber.

In the modified form shown inFigs. 3, 4 and'5 the supply pipe lfor the gas is provided with a contracted opening 2 at the to which leads to abort valve 3 having an en argcd opening in the. bottom which communicates with the opening 2", and havi athrough which air is admitted around the gas valve. The butterfl valve 8 is. located 111' the supply pipe;- T e box valve 3 is moved by means of a screw7, having a hand wheel 6 to regulate the distance of the nozzle 12 from the outlet of the shell 5" which leads to, the combustion chamber, thereby varying the size of the air space or inlet, and produ'cF ing the same result as the structure above described. The box valve slides on the plate ipe. The swivel 'oint 1 formed between tiie pipe 1 and the cad 2 allows the device to be turned to any angle, and the flange on the head 2 overlaps the flange at thetop of the pi e and this keeps out dirt and water and ena ice the device to be easily manipulated. This joint ma be lubricated in any suitable manner.

t will 'be seen that in either form the amount of air supplied can be re ulated by moving the slide valve, without a ecl'ing the supply of gas, because of the openin s in the 'pi e and'valve, being such as to allow the vave to be moved without varying thegas supply. The relative proportions of the openings allow movement 0 the valve without variation of the gas supply. Obviously the same result would be produced by havin enlarged openings in 0th parts of the va ve, instead of in one wart, as shown, the result in either event ein that limited movement of the valve 'wil not vary the amount of'gas supplied. The arran ement of the communicatm openings is suc as to allow whatever regu ation is desired in the,

er desire pipe and the head may be omitted, or some 0t distance between the nozzle 13 and the iulet shell 5, the amount of air entering being regulated by moving thenozzle in or outv But by full movement of the slide valvethe outlet from the gas supply pipe is co1n pletely closed, thereby cutting ofl the supply er kind of joint used. The valve may lie in any plane and be otherwise arranged according to local conditions.

The parts are shown as made of metal, but

ma be used for some or all the parts.

t is to be understood that the communicating openings between the sup(ply pipe andthe va. ve are not necessarily of ifi'erent sizes or shapes as both may be of the same size and and to vary the gas supply when movcd to an additional extent.

3. The combination with a gas supply pipe and an air and gas inlet to a combustion chamber, of a valve between and controlling both the pipe and the inlet, and through which the gas iasses, and movable toward and from the inlet, and hm ing means to vary the air supply without variation of the gas supply when moved to a certain extent and to vary the gas supply when moved to an additional extent, and an auxiliary valve in the gas passage, to indcpemlently control the gas supply. 4 I

4. 'lhe combination with an air and gas inlet to a combustion chamber, of a gas supply pipe, and a valve between the pipe and the in ct and constructed to control both,

, said inlet and valve having cooperating the invention is not limited to any particular material, as obviously, brick or other material a gas admitted.

shape and larger than the inlet opening of the supply pipe and thus allow a regulation of the the gas supply.

air without afi'ectin F any size or shape indeopenings may be 0 pendent of each other, as the skilled mechanic may arrange, or as may be desired, as long as 7 they permit of the valve being moved to regulate the air Withou t affecting the gas supply.

We claim:

1. The combination with a gas supply pi e and an inlet to a. combustion chamber, ol a valve structure connecting the said pipe and inlet and movable toward and from the inletto vary the air supply thereto, the valve structure and supply pipe having communicatin openings one of which is enlarged so These municating openings one of which is enlarged,

l l t t that innted m'ofvement of the valve will not vary the amount of gas supplied.

2. The combination with a gas supply pipe 3 and an air and gas inlet to a combustion parts constructed to vary the amount of air admitted without variation of the amount of 5. The combination with an air and gas inlet to a chamber, of a gas supply ipe, and a valve having a gas passage antFslidable over the outlet from the ipe, and having the end of the assage movalile toward and from the said in ct tovary the amount of air ad mitted, the pipe and valve having comso as to permit some movement of the valve without varying the gas supply.

6. The combination with an inlet to a combustion chamber, of a gas supply pipe, a turning head upon the end thereof, and a valve slidable on the head and having a gas passage through -the valve with a nozzle at the end of the passage, movable into and out of the inlet.

7. T he combination with a gas so )ply pipe of a valve movable across the end ot the pipe and having a gas passage. said pipe and passage having communicating openings one cl flwhich is of greater area than the other.

chamber, of a valve between the pipe and the inlet, and through which the gas passes, movable toward and lrom the inlet, and con- 5 "tructed to control and cod erate with both the pipe and the inlet, and iaving means to vary the air supply without variation of the gas supply when moved to a certain extent In testimony whereof, we aflix our ignatures in presen ce of two witnesse EGBERT a. MURHISOX. JOSEPH RIDDELL.

* RICHARD c. .tmaiusox.

Wit messes:

JOHN A. luxxrz ltor Navrum 

